Question

In sickle cell anaemia, an amino-acid
substitution is
1) Valine by glutamine in a -chain
2) Valine by glutamine in ß-chain
3) Glutamine by valine in a -chain
4) Glutamine by valine in ß-chain​

Answer 1

Answer:

(4) Glutamine by valine in beta chain.

is the right ans